---
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Prepare MQ/DB services
  hosts: keystone_all
  gather_facts: no
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - keystone
  tasks:

    - name: Configure rabbitmq vhost/user
      include: common-tasks/rabbitmq-vhost-user.yml
      vars:
        user: "{{ keystone_rabbitmq_userid }}"
        password: "{{ keystone_rabbitmq_password }}"
        vhost: "{{ keystone_rabbitmq_vhost }}"
        _rabbitmq_host_group: "{{ keystone_rabbitmq_host_group }}"
      when:
        - "groups[keystone_rabbitmq_host_group] | length > 0"
      run_once: yes

    - name: Configure rabbitmq vhost/user (telemetry)
      include: common-tasks/rabbitmq-vhost-user.yml
      vars:
        user: "{{ keystone_rabbitmq_telemetry_userid }}"
        password: "{{ keystone_rabbitmq_telemetry_password }}"
        vhost: "{{ keystone_rabbitmq_telemetry_vhost }}"
        _rabbitmq_host_group: "{{ keystone_rabbitmq_telemetry_host_group }}"
      when:
        - "keystone_ceilometer_enabled | bool"
        - "groups[keystone_rabbitmq_telemetry_host_group] is defined"
        - "groups[keystone_rabbitmq_telemetry_host_group] | length > 0"
        - "groups[keystone_rabbitmq_telemetry_host_group] != groups[keystone_rabbitmq_host_group]"
      run_once: yes

    - name: Configure MySQL user
      include: common-tasks/mysql-db-user.yml
      vars:
        user_name: "{{ keystone_galera_user }}"
        password: "{{ keystone_container_mysql_password }}"
        login_host: "{{ keystone_galera_address }}"
        db_name: "{{ keystone_galera_database }}"
      run_once: yes



- name: Installation and setup of Keystone
  hosts: keystone_all
  serial: "{{ keystone_serial | default(['1', '100%']) }}"
  gather_facts: "{{ osa_gather_facts | default(True) }}"
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - keystone
  pre_tasks:

    # In order to ensure that any container, software or
    # config file changes which causes a container/service
    # restart do not cause an unexpected outage, we drain
    # the load balancer back end for this container.
    - include: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: "{{ item }}"
        haproxy_state: disabled
      when: "groups['keystone_all'] | length > 1"
      with_items:
        - "keystone_service-back"
        - "keystone_admin-back"

    - name: Configure container
      include: "common-tasks/os-{{ container_tech | default('lxc') }}-container-setup.yml"
      vars:
        extra_container_config_no_restart:
          - "lxc.start.order=19"

    - name: Configure log directories (on metal)
      include: common-tasks/os-log-dir-setup.yml
      vars:
        log_dirs:
          - src: "/openstack/log/{{ inventory_hostname }}-keystone"
            dest: "/var/log/keystone"

    - include: common-tasks/unbound-clients.yml
      static: no
      when:
        - hostvars['localhost']['resolvconf_enabled'] | bool

    # todo(cloudnull): this task is being run only if/when keystone is installed on a physical host.
    #  This is not being run within a container because it is an unsupported action due to this
    #  issue: (https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1279041)
    #  This issue was resolved however we'll need to eval it in the next LTS release.
    #  Related OSA Bug: https://launchpad.net/bugs/1426371
    - name: Add keystone reserved port to physical host
      sysctl:
        name: "{{ item.key }}"
        value: "{{ item.value }}"
        sysctl_set: "{{ item.set|default('yes') }}"
        state: "{{ item.state|default('present') }}"
        reload: "{{ item.reload|default('yes') }}"
      with_items:
        - { key: "net.ipv4.ip_local_reserved_ports", value: "{{ keystone_admin_port }}"}
      when: is_metal | bool

  roles:
    - role: "os_keystone"
    - role: "openstack_openrc"
      tags:
        - openrc
    - role: "rsyslog_client"
      rsyslog_client_log_rotate_file: keystone_log_rotate
      rsyslog_client_log_dir: "/var/log/keystone"
      rsyslog_client_config_name: "99-keystone-rsyslog-client.conf"
      tags:
        - rsyslog
    - role: "system_crontab_coordination"
      tags:
        - crontab

  post_tasks:
    # Now that container changes are done, we can set
    # the load balancer back end for this container
    # to available again.
    - include: common-tasks/haproxy-endpoint-manage.yml
      vars:
        haproxy_backend: "{{ item }}"
        haproxy_state: enabled
      when: "groups['keystone_all'] | length > 1"
      with_items:
        - "keystone_service-back"
        - "keystone_admin-back"

# These facts are set against the deployment host to ensure that
# they are fast to access. This is done in preference to setting
# them against each target as the hostvars extraction will take
# a long time if executed against a large inventory.
- name: Finalise data migrations if required
  hosts: keystone_all
  gather_facts: no
  user: root
  environment: "{{ deployment_environment_variables | default({}) }}"
  tags:
    - keystone
  tasks:
    - name: refresh local facts
      setup:
        filter: ansible_local
        gather_subset: "!all"

    # This variable contains the values of the local fact set for the keystone
    # venv tag for all hosts in the 'keystone_all' host group.
    - name: Gather software version list
      set_fact:
        keystone_all_software_versions: "{{ (groups['keystone_all'] | map('extract', hostvars, ['ansible_local', 'openstack_ansible', 'keystone', 'venv_tag'])) | list }}"
      delegate_to: localhost
      run_once: yes

    # This variable outputs a boolean value which is True when
    # keystone_all_software_versions contains a list of defined
    # values. If they are not defined, it means that not all
    # hosts have their software deployed yet.
    - name: Set software deployed fact
      set_fact:
        keystone_all_software_deployed: "{{ (keystone_all_software_versions | select('defined')) | list == keystone_all_software_versions }}"
      delegate_to: localhost
      run_once: yes

    # This variable outputs a boolean when all the values in
    # keystone_all_software_versions are the same and the software
    # has been deployed to all hosts in the group.
    - name: Set software updated fact
      set_fact:
        keystone_all_software_updated: "{{ ((keystone_all_software_versions | unique) | length == 1) and (keystone_all_software_deployed | bool) }}"
      delegate_to: localhost
      run_once: yes

    - name: Perform a Keystone DB sync contract
      command: "{{ keystone_bin }}/keystone-manage db_sync --contract"
      become: yes
      become_user: "{{ keystone_system_user_name }}"
      when:
        - "keystone_all_software_updated | bool"
        - "ansible_local['openstack_ansible']['keystone']['need_db_contract'] | bool"
      register: dbsync_contract
      run_once: yes

    - name: Disable the need for any further db sync
      ini_file:
        dest: "/etc/ansible/facts.d/openstack_ansible.fact"
        section: keystone
        option: "need_db_contract"
        value: False
      when:
        - "dbsync_contract | succeeded"
